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The boundaries of the Sahara are the Atlantic Ocean on the west, the Atlas Mountains and the Mediterranean Sea on the north, the Red Sea and Egypt on the east, and the Sudan and the valley of the River Niger on the south. Sahara is divided into western Sahara, the central Ahaggar Mountains, the Tibesti massif the Aïr Mountains (a region of desert mountains and high plateaus), Tenere desert and the Libyan desertThe Libyan desert is the Eastern part of the Sahara region. The Libyan desert covers east Libya and all western Egypt. Main oasis include Siwa, Dakhla and Kharga in Egypt, and Jaghbub in Libya. (the most arid region). The highest peak in the Sahara is Emi KoussiEmi Koussi is a high volcano that lies at the south end of the Tibesti Mountains in the central Sahara of northern Chad. The volcano is one of several in the Tibesti massif, and reaches 3415 m in altitude, rising 2. 3 km above the surrounding sandstone pl (3415 m) in the Tibesti MountainsThe Tibesti Mountains are a group of extinct volcanoes forming a mountain range, in the central Sahara desert in northern Chad. The northern slopes extend a short distance into southern Libya. The highest peak is Emi Koussi, 3415 m. Other summits include in northern ChadThe Republic of Chad is a country in central Africa that borders Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest and Niger to the west. Jumhuriyat Tashad Republique du Tchad In Detail.
The Sahara divides the continentDymaxion map by Buckminster Fuller shows land mass with minimal distortion as only one continuous continent A continent (from the Latin continere for "to hold together") is a large continuous mass of land on the planet Earth. There is no single standard f into NorthNorth Africa is the region of the continent of Africa north of the Sahara desert, comprising the Maghreb, including Libya and Egypt, and also by some definitions the Sudan. North Africa is vastly more uniform ethnically than anywhere in Africa south of th and Sub-Saharan AfricaSub-Saharan Africa Africa south of the Sahara Desert, is the term is used to describe those countries of Africa that are not part of North Africa. Sub-Saharan Africa is also known as Black Africa or as Dark Africa (though some consider these terms to be o. These two regions are culturally and climatically distinct. The southern border of the Sahara is marked by a band of semiarid savannaSavanna is a grassland dotted with trees, and occurs in several types of biomes. In savannas, grasses form the predominant vegetation type, usually mixed with herbs and shrubs, with trees scattered individually or in small clumps. Savannas are sometimes a called the Sahel; south of the Sahel lies the lusher Sudan.
Humans have lived on the edge of the desert for almost 500,000 years. During the last ice age, the Sahara was a much wetter place, much like East Africa, than it is today. Over 30,000 petroglyphs of river animals such as crocodiles survive in total with half found in the Tassili n'Ajjer in southeast Algeria. Fossils of dinosaurs have also been found here. The modern Sahara, though, is generally devoid of vegetation, except in the Nile Valley and at a few oases and in some scattered mountains and has been this way since about 3000 BC.
2.5 million people live in Sahara, most of these in Mauritania, Morocco and Algeria. Dominant groups of people are the Tuareg- Berber, the Sahrawis , Moors, and different black African ethnicities including the Tubu , the Nubians, the Zaghawas and the Kanuri. The largest city is Nouakchott, Mauritania's capital. Other important cities are Tamanrasset, Algeria, Timbuktu, Mali, Agadez, Niger, Ghat , Libya, and Faya, Chad.